Free browser tool
Free Video Watermark Tool
Overlay text (via canvas PNG) or an image at corners/center — no server upload.
Text watermarks are rasterized to PNG (no drawtext font pack required). Prefer ≤1280 width.
Drop a video here
MP4 / MOV / WebM — runs on your device
100% client-side via ffmpeg.wasm. Your video never leaves this device.
About video watermarks
Brand clips with text or a logo image. Text is drawn on a canvas then overlaid so stock ffmpeg.wasm works without font binaries.
Choose top-left, top-right, bottom-left, bottom-right, or center. Opacity applies to image overlays.
Automate larger workflows with okayok.ai.
Why watermark here
Text or image
Type a label or upload a PNG/JPEG logo.
Position presets
Five placements covering corners and center.
Private
Overlay runs entirely in the browser.
Memory-safe defaults
Scaled base video + reset after each encode.
How to watermark
- 1
Upload video
Drop MP4/MOV/WebM.
- 2
Choose text or image
Set position, then process.
- 3
Download
Save the watermarked MP4.
FAQ
More video tools
Video Speed
Speed up or slow down 0.5x–2x with setpts + atempo.
Video to GIF
Turn a short clip into a GIF with fps/scale limits.
Reverse Video
Reverse playback (video; audio optional, memory-heavy).
Rotate Video
Rotate 90°, 180°, or 270° in the browser.
Video Scene Cuts
Detect shot changes with ffmpeg.wasm and export keyframes or clips.
MP4 to MP3
Extract MP3 audio from video with ffmpeg.wasm in your browser.
More from Okay OK
Okay OK is the official home of the OK product family — OK Tools, OK Video, OK Images, and more.
Visit okayok.ai